I’ve tried clean reinstalling the app, but no matter what I do, on first launch it asks you to click for the Grand Rapids feed or Kalamazoo, and you can tap one or the other until your finger breaks and nothing whatsoever happens, and you’re basically stuck on that screen. If you try relaunching the app, however, force-close it, wait for a moment, then restart it, all you get is a black screen, no matter how many times you restart.
If you want to stream HFR, just go use TuneIn 🙄